Home / 10,386.24-15,570.64-4,538.40

Finding the Fourth Proportional to 10,386.24, 15,570.64 and 4,538.40

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Solution

The fourth proportional to 10,386.24, 15,570.64 and 4,538.40 is: 6,803.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.24 : 15,570.64 = 4,538.40 : x
  2. Step 2: Convert to fraction form
    10,386.24/15,570.64 = 4,538.40/x
  3. Step 3: Cross multiply
    10,386.24x = 15,570.64 × 4,538.40
  4. Step 4: Simplify right side
    10,386.24x = 70,665,792.58
  5. Step 5: Solve for x
    x = 70,665,792.58/10,386.24
  6. Step 6: Final answer
    x = 6,803.79

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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.