Home / 15,406.02-21,258.75-8,943.42

Finding the Fourth Proportional to 15,406.02, 21,258.75 and 8,943.42

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Solution

The fourth proportional to 15,406.02, 21,258.75 and 8,943.42 is: 12,341.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406.02 : 21,258.75 = 8,943.42 : x
  2. Step 2: Convert to fraction form
    15,406.02/21,258.75 = 8,943.42/x
  3. Step 3: Cross multiply
    15,406.02x = 21,258.75 × 8,943.42
  4. Step 4: Simplify right side
    15,406.02x = 190,125,929.93
  5. Step 5: Solve for x
    x = 190,125,929.93/15,406.02
  6. Step 6: Final answer
    x = 12,341.02

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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.