Home / 15,389.04-21,237.35-8,674.95

Finding the Fourth Proportional to 15,389.04, 21,237.35 and 8,674.95

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Solution

The fourth proportional to 15,389.04, 21,237.35 and 8,674.95 is: 11,971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,389.04 : 21,237.35 = 8,674.95 : x
  2. Step 2: Convert to fraction form
    15,389.04/21,237.35 = 8,674.95/x
  3. Step 3: Cross multiply
    15,389.04x = 21,237.35 × 8,674.95
  4. Step 4: Simplify right side
    15,389.04x = 184,232,949.38
  5. Step 5: Solve for x
    x = 184,232,949.38/15,389.04
  6. Step 6: Final answer
    x = 11,971.70

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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.