Home / 13,603.02-20,395.95-5,703.40

Finding the Fourth Proportional to 13,603.02, 20,395.95 and 5,703.40

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Solution

The fourth proportional to 13,603.02, 20,395.95 and 5,703.40 is: 8,551.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,603.02 : 20,395.95 = 5,703.40 : x
  2. Step 2: Convert to fraction form
    13,603.02/20,395.95 = 5,703.40/x
  3. Step 3: Cross multiply
    13,603.02x = 20,395.95 × 5,703.40
  4. Step 4: Simplify right side
    13,603.02x = 116,326,261.23
  5. Step 5: Solve for x
    x = 116,326,261.23/13,603.02
  6. Step 6: Final answer
    x = 8,551.50

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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.