Home / 15,409.17-21,264.73-8,695.08

Finding the Fourth Proportional to 15,409.17, 21,264.73 and 8,695.08

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Solution

The fourth proportional to 15,409.17, 21,264.73 and 8,695.08 is: 11,999.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,409.17 : 21,264.73 = 8,695.08 : x
  2. Step 2: Convert to fraction form
    15,409.17/21,264.73 = 8,695.08/x
  3. Step 3: Cross multiply
    15,409.17x = 21,264.73 × 8,695.08
  4. Step 4: Simplify right side
    15,409.17x = 184,898,506.79
  5. Step 5: Solve for x
    x = 184,898,506.79/15,409.17
  6. Step 6: Final answer
    x = 11,999.25

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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.