Home / 10,386.20-15,570.02-4,538.18

Finding the Fourth Proportional to 10,386.20, 15,570.02 and 4,538.18

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Solution

The fourth proportional to 10,386.20, 15,570.02 and 4,538.18 is: 6,803.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.20 : 15,570.02 = 4,538.18 : x
  2. Step 2: Convert to fraction form
    10,386.20/15,570.02 = 4,538.18/x
  3. Step 3: Cross multiply
    10,386.20x = 15,570.02 × 4,538.18
  4. Step 4: Simplify right side
    10,386.20x = 70,659,553.36
  5. Step 5: Solve for x
    x = 70,659,553.36/10,386.20
  6. Step 6: Final answer
    x = 6,803.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.