Home / 15,349.08-21,159.18-10,858.98

Finding the Fourth Proportional to 15,349.08, 21,159.18 and 10,858.98

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Solution

The fourth proportional to 15,349.08, 21,159.18 and 10,858.98 is: 14,969.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,349.08 : 21,159.18 = 10,858.98 : x
  2. Step 2: Convert to fraction form
    15,349.08/21,159.18 = 10,858.98/x
  3. Step 3: Cross multiply
    15,349.08x = 21,159.18 × 10,858.98
  4. Step 4: Simplify right side
    15,349.08x = 229,767,112.44
  5. Step 5: Solve for x
    x = 229,767,112.44/15,349.08
  6. Step 6: Final answer
    x = 14,969.44

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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.