Home / 13,242.33-18,275.67-7,577.55

Finding the Fourth Proportional to 13,242.33, 18,275.67 and 7,577.55

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Solution

The fourth proportional to 13,242.33, 18,275.67 and 7,577.55 is: 10,457.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.33 : 18,275.67 = 7,577.55 : x
  2. Step 2: Convert to fraction form
    13,242.33/18,275.67 = 7,577.55/x
  3. Step 3: Cross multiply
    13,242.33x = 18,275.67 × 7,577.55
  4. Step 4: Simplify right side
    13,242.33x = 138,484,803.21
  5. Step 5: Solve for x
    x = 138,484,803.21/13,242.33
  6. Step 6: Final answer
    x = 10,457.74

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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.