Home / 13,287.95-18,337.37-7,319.60

Finding the Fourth Proportional to 13,287.95, 18,337.37 and 7,319.60

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Solution

The fourth proportional to 13,287.95, 18,337.37 and 7,319.60 is: 10,101.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287.95 : 18,337.37 = 7,319.60 : x
  2. Step 2: Convert to fraction form
    13,287.95/18,337.37 = 7,319.60/x
  3. Step 3: Cross multiply
    13,287.95x = 18,337.37 × 7,319.60
  4. Step 4: Simplify right side
    13,287.95x = 134,222,085.17
  5. Step 5: Solve for x
    x = 134,222,085.17/13,287.95
  6. Step 6: Final answer
    x = 10,101.04

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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.