Home / 15,875.67-21,895.78-10,211.07

Finding the Fourth Proportional to 15,875.67, 21,895.78 and 10,211.07

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Solution

The fourth proportional to 15,875.67, 21,895.78 and 10,211.07 is: 14,083.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,875.67 : 21,895.78 = 10,211.07 : x
  2. Step 2: Convert to fraction form
    15,875.67/21,895.78 = 10,211.07/x
  3. Step 3: Cross multiply
    15,875.67x = 21,895.78 × 10,211.07
  4. Step 4: Simplify right side
    15,875.67x = 223,579,342.28
  5. Step 5: Solve for x
    x = 223,579,342.28/15,875.67
  6. Step 6: Final answer
    x = 14,083.14

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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.