Home / 25,669.05-38,506.64-9,870.40

Finding the Fourth Proportional to 25,669.05, 38,506.64 and 9,870.40

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Solution

The fourth proportional to 25,669.05, 38,506.64 and 9,870.40 is: 14,806.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,669.05 : 38,506.64 = 9,870.40 : x
  2. Step 2: Convert to fraction form
    25,669.05/38,506.64 = 9,870.40/x
  3. Step 3: Cross multiply
    25,669.05x = 38,506.64 × 9,870.40
  4. Step 4: Simplify right side
    25,669.05x = 380,075,939.46
  5. Step 5: Solve for x
    x = 380,075,939.46/25,669.05
  6. Step 6: Final answer
    x = 14,806.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.