Home / 15,475.28-21,357.96-9,812.84

Finding the Fourth Proportional to 15,475.28, 21,357.96 and 9,812.84

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Solution

The fourth proportional to 15,475.28, 21,357.96 and 9,812.84 is: 13,543.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,475.28 : 21,357.96 = 9,812.84 : x
  2. Step 2: Convert to fraction form
    15,475.28/21,357.96 = 9,812.84/x
  3. Step 3: Cross multiply
    15,475.28x = 21,357.96 × 9,812.84
  4. Step 4: Simplify right side
    15,475.28x = 209,582,244.21
  5. Step 5: Solve for x
    x = 209,582,244.21/15,475.28
  6. Step 6: Final answer
    x = 13,543.03

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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.