Home / 15,486.08-21,362.56-9,810.24

Finding the Fourth Proportional to 15,486.08, 21,362.56 and 9,810.24

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Solution

The fourth proportional to 15,486.08, 21,362.56 and 9,810.24 is: 13,532.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,486.08 : 21,362.56 = 9,810.24 : x
  2. Step 2: Convert to fraction form
    15,486.08/21,362.56 = 9,810.24/x
  3. Step 3: Cross multiply
    15,486.08x = 21,362.56 × 9,810.24
  4. Step 4: Simplify right side
    15,486.08x = 209,571,840.61
  5. Step 5: Solve for x
    x = 209,571,840.61/15,486.08
  6. Step 6: Final answer
    x = 13,532.92

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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.