Home / 15,371.04-21,204.02-9,703.75

Finding the Fourth Proportional to 15,371.04, 21,204.02 and 9,703.75

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Solution

The fourth proportional to 15,371.04, 21,204.02 and 9,703.75 is: 13,386.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,371.04 : 21,204.02 = 9,703.75 : x
  2. Step 2: Convert to fraction form
    15,371.04/21,204.02 = 9,703.75/x
  3. Step 3: Cross multiply
    15,371.04x = 21,204.02 × 9,703.75
  4. Step 4: Simplify right side
    15,371.04x = 205,758,460.56
  5. Step 5: Solve for x
    x = 205,758,460.56/15,371.04
  6. Step 6: Final answer
    x = 13,386.11

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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.