Home / 16,405.80-24,608.88-5,312.40

Finding the Fourth Proportional to 16,405.80, 24,608.88 and 5,312.40

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Solution

The fourth proportional to 16,405.80, 24,608.88 and 5,312.40 is: 7,968.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,405.80 : 24,608.88 = 5,312.40 : x
  2. Step 2: Convert to fraction form
    16,405.80/24,608.88 = 5,312.40/x
  3. Step 3: Cross multiply
    16,405.80x = 24,608.88 × 5,312.40
  4. Step 4: Simplify right side
    16,405.80x = 130,732,214.11
  5. Step 5: Solve for x
    x = 130,732,214.11/16,405.80
  6. Step 6: Final answer
    x = 7,968.66

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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.