Home / 10,896,005.20-16,344,007.80-8,639,928.40

Finding the Fourth Proportional to 10,896,005.20, 16,344,007.80 and 8,639,928.40

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Solution

The fourth proportional to 10,896,005.20, 16,344,007.80 and 8,639,928.40 is: 12,959,892.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,896,005.20 : 16,344,007.80 = 8,639,928.40 : x
  2. Step 2: Convert to fraction form
    10,896,005.20/16,344,007.80 = 8,639,928.40/x
  3. Step 3: Cross multiply
    10,896,005.20x = 16,344,007.80 × 8,639,928.40
  4. Step 4: Simplify right side
    10,896,005.20x = 141,211,057,161,041.53
  5. Step 5: Solve for x
    x = 141,211,057,161,041.53/10,896,005.20
  6. Step 6: Final answer
    x = 12,959,892.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.