Home / 15,543.59-21,457.35-9,168.03

Finding the Fourth Proportional to 15,543.59, 21,457.35 and 9,168.03

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Solution

The fourth proportional to 15,543.59, 21,457.35 and 9,168.03 is: 12,656.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,543.59 : 21,457.35 = 9,168.03 : x
  2. Step 2: Convert to fraction form
    15,543.59/21,457.35 = 9,168.03/x
  3. Step 3: Cross multiply
    15,543.59x = 21,457.35 × 9,168.03
  4. Step 4: Simplify right side
    15,543.59x = 196,721,628.52
  5. Step 5: Solve for x
    x = 196,721,628.52/15,543.59
  6. Step 6: Final answer
    x = 12,656.13

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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.