Home / 13,425.48-18,526.80-7,457.16

Finding the Fourth Proportional to 13,425.48, 18,526.80 and 7,457.16

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Solution

The fourth proportional to 13,425.48, 18,526.80 and 7,457.16 is: 10,290.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.48 : 18,526.80 = 7,457.16 : x
  2. Step 2: Convert to fraction form
    13,425.48/18,526.80 = 7,457.16/x
  3. Step 3: Cross multiply
    13,425.48x = 18,526.80 × 7,457.16
  4. Step 4: Simplify right side
    13,425.48x = 138,157,311.89
  5. Step 5: Solve for x
    x = 138,157,311.89/13,425.48
  6. Step 6: Final answer
    x = 10,290.68

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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.