Home / 13,425.34-18,526.45-7,457.39

Finding the Fourth Proportional to 13,425.34, 18,526.45 and 7,457.39

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Solution

The fourth proportional to 13,425.34, 18,526.45 and 7,457.39 is: 10,290.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.34 : 18,526.45 = 7,457.39 : x
  2. Step 2: Convert to fraction form
    13,425.34/18,526.45 = 7,457.39/x
  3. Step 3: Cross multiply
    13,425.34x = 18,526.45 × 7,457.39
  4. Step 4: Simplify right side
    13,425.34x = 138,158,962.97
  5. Step 5: Solve for x
    x = 138,158,962.97/13,425.34
  6. Step 6: Final answer
    x = 10,290.91

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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.