Home / 15,436.81-21,303.18-9,465.01

Finding the Fourth Proportional to 15,436.81, 21,303.18 and 9,465.01

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Solution

The fourth proportional to 15,436.81, 21,303.18 and 9,465.01 is: 13,061.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,436.81 : 21,303.18 = 9,465.01 : x
  2. Step 2: Convert to fraction form
    15,436.81/21,303.18 = 9,465.01/x
  3. Step 3: Cross multiply
    15,436.81x = 21,303.18 × 9,465.01
  4. Step 4: Simplify right side
    15,436.81x = 201,634,811.73
  5. Step 5: Solve for x
    x = 201,634,811.73/15,436.81
  6. Step 6: Final answer
    x = 13,061.95

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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.