Home / 19,559.76-26,985.24-13,509.60

Finding the Fourth Proportional to 19,559.76, 26,985.24 and 13,509.60

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Solution

The fourth proportional to 19,559.76, 26,985.24 and 13,509.60 is: 18,638.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,559.76 : 26,985.24 = 13,509.60 : x
  2. Step 2: Convert to fraction form
    19,559.76/26,985.24 = 13,509.60/x
  3. Step 3: Cross multiply
    19,559.76x = 26,985.24 × 13,509.60
  4. Step 4: Simplify right side
    19,559.76x = 364,559,798.30
  5. Step 5: Solve for x
    x = 364,559,798.30/19,559.76
  6. Step 6: Final answer
    x = 18,638.26

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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.