Home / 16,688.95-23,030.73-9,135.21

Finding the Fourth Proportional to 16,688.95, 23,030.73 and 9,135.21

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Solution

The fourth proportional to 16,688.95, 23,030.73 and 9,135.21 is: 12,606.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,688.95 : 23,030.73 = 9,135.21 : x
  2. Step 2: Convert to fraction form
    16,688.95/23,030.73 = 9,135.21/x
  3. Step 3: Cross multiply
    16,688.95x = 23,030.73 × 9,135.21
  4. Step 4: Simplify right side
    16,688.95x = 210,390,394.17
  5. Step 5: Solve for x
    x = 210,390,394.17/16,688.95
  6. Step 6: Final answer
    x = 12,606.57

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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.