Home / 13,424.85-18,526.30-7,457.08

Finding the Fourth Proportional to 13,424.85, 18,526.30 and 7,457.08

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Solution

The fourth proportional to 13,424.85, 18,526.30 and 7,457.08 is: 10,290.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.85 : 18,526.30 = 7,457.08 : x
  2. Step 2: Convert to fraction form
    13,424.85/18,526.30 = 7,457.08/x
  3. Step 3: Cross multiply
    13,424.85x = 18,526.30 × 7,457.08
  4. Step 4: Simplify right side
    13,424.85x = 138,152,101.20
  5. Step 5: Solve for x
    x = 138,152,101.20/13,424.85
  6. Step 6: Final answer
    x = 10,290.77

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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.