Home / 15,298.07-21,111.35-8,583.71

Finding the Fourth Proportional to 15,298.07, 21,111.35 and 8,583.71

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Solution

The fourth proportional to 15,298.07, 21,111.35 and 8,583.71 is: 11,845.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,298.07 : 21,111.35 = 8,583.71 : x
  2. Step 2: Convert to fraction form
    15,298.07/21,111.35 = 8,583.71/x
  3. Step 3: Cross multiply
    15,298.07x = 21,111.35 × 8,583.71
  4. Step 4: Simplify right side
    15,298.07x = 181,213,557.63
  5. Step 5: Solve for x
    x = 181,213,557.63/15,298.07
  6. Step 6: Final answer
    x = 11,845.52

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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.