Home / 15,302.94-21,123.63-9,020.58

Finding the Fourth Proportional to 15,302.94, 21,123.63 and 9,020.58

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Solution

The fourth proportional to 15,302.94, 21,123.63 and 9,020.58 is: 12,451.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,302.94 : 21,123.63 = 9,020.58 : x
  2. Step 2: Convert to fraction form
    15,302.94/21,123.63 = 9,020.58/x
  3. Step 3: Cross multiply
    15,302.94x = 21,123.63 × 9,020.58
  4. Step 4: Simplify right side
    15,302.94x = 190,547,394.31
  5. Step 5: Solve for x
    x = 190,547,394.31/15,302.94
  6. Step 6: Final answer
    x = 12,451.69

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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.