Home / 10,259.76-15,386.40-5,069.28

Finding the Fourth Proportional to 10,259.76, 15,386.40 and 5,069.28

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Solution

The fourth proportional to 10,259.76, 15,386.40 and 5,069.28 is: 7,602.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,259.76 : 15,386.40 = 5,069.28 : x
  2. Step 2: Convert to fraction form
    10,259.76/15,386.40 = 5,069.28/x
  3. Step 3: Cross multiply
    10,259.76x = 15,386.40 × 5,069.28
  4. Step 4: Simplify right side
    10,259.76x = 77,997,969.79
  5. Step 5: Solve for x
    x = 77,997,969.79/10,259.76
  6. Step 6: Final answer
    x = 7,602.32

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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.