Home / 10,920.04-16,355.45-6,528.29

Finding the Fourth Proportional to 10,920.04, 16,355.45 and 6,528.29

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Solution

The fourth proportional to 10,920.04, 16,355.45 and 6,528.29 is: 9,777.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,920.04 : 16,355.45 = 6,528.29 : x
  2. Step 2: Convert to fraction form
    10,920.04/16,355.45 = 6,528.29/x
  3. Step 3: Cross multiply
    10,920.04x = 16,355.45 × 6,528.29
  4. Step 4: Simplify right side
    10,920.04x = 106,773,055.22
  5. Step 5: Solve for x
    x = 106,773,055.22/10,920.04
  6. Step 6: Final answer
    x = 9,777.72

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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.