Home / 15,746.04-21,720.30-9,459.96

Finding the Fourth Proportional to 15,746.04, 21,720.30 and 9,459.96

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Solution

The fourth proportional to 15,746.04, 21,720.30 and 9,459.96 is: 13,049.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,746.04 : 21,720.30 = 9,459.96 : x
  2. Step 2: Convert to fraction form
    15,746.04/21,720.30 = 9,459.96/x
  3. Step 3: Cross multiply
    15,746.04x = 21,720.30 × 9,459.96
  4. Step 4: Simplify right side
    15,746.04x = 205,473,169.19
  5. Step 5: Solve for x
    x = 205,473,169.19/15,746.04
  6. Step 6: Final answer
    x = 13,049.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.