Home / 18,595.18-25,643.75-12,210.51

Finding the Fourth Proportional to 18,595.18, 25,643.75 and 12,210.51

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Solution

The fourth proportional to 18,595.18, 25,643.75 and 12,210.51 is: 16,838.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,595.18 : 25,643.75 = 12,210.51 : x
  2. Step 2: Convert to fraction form
    18,595.18/25,643.75 = 12,210.51/x
  3. Step 3: Cross multiply
    18,595.18x = 25,643.75 × 12,210.51
  4. Step 4: Simplify right side
    18,595.18x = 313,123,265.81
  5. Step 5: Solve for x
    x = 313,123,265.81/18,595.18
  6. Step 6: Final answer
    x = 16,838.95

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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.