Home / 15,398.53-21,259.13-10,102.59

Finding the Fourth Proportional to 15,398.53, 21,259.13 and 10,102.59

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Solution

The fourth proportional to 15,398.53, 21,259.13 and 10,102.59 is: 13,947.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,398.53 : 21,259.13 = 10,102.59 : x
  2. Step 2: Convert to fraction form
    15,398.53/21,259.13 = 10,102.59/x
  3. Step 3: Cross multiply
    15,398.53x = 21,259.13 × 10,102.59
  4. Step 4: Simplify right side
    15,398.53x = 214,772,223.63
  5. Step 5: Solve for x
    x = 214,772,223.63/15,398.53
  6. Step 6: Final answer
    x = 13,947.58

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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.