Home / 13,477.86-18,599.40-7,509.60

Finding the Fourth Proportional to 13,477.86, 18,599.40 and 7,509.60

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Solution

The fourth proportional to 13,477.86, 18,599.40 and 7,509.60 is: 10,363.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.86 : 18,599.40 = 7,509.60 : x
  2. Step 2: Convert to fraction form
    13,477.86/18,599.40 = 7,509.60/x
  3. Step 3: Cross multiply
    13,477.86x = 18,599.40 × 7,509.60
  4. Step 4: Simplify right side
    13,477.86x = 139,674,054.24
  5. Step 5: Solve for x
    x = 139,674,054.24/13,477.86
  6. Step 6: Final answer
    x = 10,363.22

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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.